If you are set to graduate this May, do not wait until the spring to start looking for that first post-college job. Competition for those entry level positions is always tough. This year, coming off a recession is likely to be harder than most. Give yourself a running start by doing some of the research now.
Start making preliminary contacts with prospective companies. Friend them on Face Book, follow them on Twitter. Make sure your resume is in top condition.
The more preparation you do this winter the better your chances will be of landing a good job after graduation.